code: def get_estimated_time(self):
      et = self._estimated_time * self._beta
      et += (1 - self._beta) * self._last_step_time
      return et / (1 - self._beta_pow * self._beta)
  
imports: import math
  import time
  from typing import TYPE_CHECKING, List
  from labml import logger
  from ..tracker import tracker_singleton
label_desc: Use image node_id 4 for calling the LoopingSection obj's underlying member method code with example usage: obj.get_estimated_time() and returns: unknown